What are minimum requirements of any Contract?

Parties, Scope of work, Prices, Duration, Payment terms.

Offer, Acceptance and Consideration

Ans as below:

1.Parties

2. Purpose

3.Contract Price

4.Terms of Payment

5.Delivery Terms

6.Taxes

7.Packing details

8.Inspection of Products

9.Prohibition of Transfer of Products

10.Guarantee and Claim

11.Default

12.Termination

13.Notices

14.Language

15.Governing Law

16.Limitation of Seller's Liability

17.Entire Agreement and Amendment

18.Arbitration

19.Force Majeure

20. Severability

1. Proposal or Scope of work
2. Financing
3. Subcontractors prequalifications
4. Rates & payment terms
5. Completion time
6. Variations
7. Liquidity damages

1. Parties

2. Offer and Acceptance

3. Consideration

4. lawful object

I agree with Mr.Amin answers. 

Offer , Aceptance and consideration .

Sevice Against Price  within certian terms and condition 

Offer, Acceptance and Consideration- as posted by Mr Abdul Aziz is the answer which provides bare minimum requirement in any Contract without any of which the contract can not exist.

Thank you Abdul Aziz